Petadolex?? is the same brand of butterbur root extract used in medical research</br>COMPARE: Only Petadolex?? is made in Germany using a patented process for removing butterbur toxins - it's PA-free with zero detectable pyrrolizidine alkaloids that can damage the liver</br>Neurologist-recommended because it's standardized (at least 15% Petasin herbal butterbur extract)</br>A safe?? protective alternative to OTC and Rx drugs - and their serious side effects</br>Affordable: No doctor visit or prescription needed</br></br>Product Description</br></br>Got migraines? Think Petadolex! Butterbur root extract (petasites) is an herb that is classified Option Level "by American Association of Neurology medical guidelines-and Petadolex is the brand of petasites neurologists recommend because it is manufactured to meet Germany's high standards for supplement purity. Plus?? its patented extraction process removes butterbur's naturally occurring liver toxins to give you a safe product you can trust. Petadolex achieves its protective effect by improving the tone and circulation of blood vessels. Unlike prescription drugs that can cause serious side effects?? Petadolex has no known drug interactions and the most common side effect is mild burping which is usually temporary. The 50mg gelcaps can be used by adults and children. (75 mg is also available) NOTE: The quality of butterbur products is critical!</br><br/>http://www.amazon.com/gp/product/B0016N9I5IIan